Joseph John Thomson

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Joseph John Thomson

In 1856, J.J Thomson was born in Cheetham Hill, England, near Manchester.J.J. Thomson published 13 books and more than 200 papers in his lifetime.When he died, he was buried in Westminster Abbey near two other influential scientists: Isaac Newton and Charles Darwin.He enrolled in Trinity college at the age of fourteen with a small scholarship.He was Cavendish Professor of Experimental Physics at Cambridge and was admitted into a prestigous royal society.His son Sir George Paget Thomson had also been awarded the nobel peace prize in physics.He was also knighted in 1908 by King Edward VII for his accomplishments.


1894- Discovered the electron1904-Proposed the plum pudding model1912-Discovered isotopes

He won the Nobel Peace Prize in 1906 for his experiments on the conduction of electricity through electrons found in gases.In 1904, he also proposed the plum pudding model which showed the atom as a big sphere with little electrons engrained onto the sphere.In 1912, he made another discovery when channeling a steam of ionized neon that there were 2 different kind of atoms thus discovering the existence of isotopes.He also was the first person to use mass spectrometry which he used when channeling ionized neon.

Lasting Impact

He discovered the electron when experimenting with cathode rays and concluded that they were part of an atom. This discovery helped open up the minds of many scientists on the structure of the atom.

J.J Thomson



A Book by J.J Thomson


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